Canine influenza is not swine flu but should I vaccinate for it?
Thursday, November 12th, 2009
With all the talk of H1N1 in the news, I have started to get some questions on the canine influenza virus also known as N3H8 virus. And this year because a new vaccine for canine influenza came out, many of the questions are about if vaccination is important.
So what is my overall recommendation.
Don’t vaccinate for it
So from the beginning – here is what we know
- This virus has been around since at least 2004 and probably since as early as 1999 but was originally thought to be a problem in greyhounds only.
- At first there was a lot of fear because greyhounds can get a hemorrhagic symptom from this virus that involves bleeding into their lungs and often times death. We have since found out that this virus does not cause that problem in other breeds.
- Most canine influenza presents as a mild kennel cough with a mild fever. A full 20-25% of dogs with canine influenza do not show any symptoms at all. Some dogs do get very sick with canine influenza and a very small percentage die of secondary lung infections. From my research it seems that canine influenza is no more of a problem then kennel cough and most dogs recover with no medical intervention. Occasionally antibiotics are needed.
- Canine influenza is not causally passed. It usually takes 3-4 days of exposure with an infected dog for a dog to catch it. This is most likely in boarding and shelter situations.
- Earlier this year a new vaccine for canine influenza was released on a conditional license. What this means is the USDA allowed release of this vaccine without as much testing as is normally needed to release a vaccine. While the minimal drug company studies showed that this vaccine is safe, there is no long term data on how safe this vaccine is in the long run or how effective it is.
- From my experience, most vaccine side effects in dogs are not immediately observed.
- The vaccine also doesn’t prevent infection with or shedding of the influenza virus (same as the vaccines for H1N1), but rather decreases the symptoms of the disease.
So we have a vaccine which we do not know much about and like most vaccines probably has side effects, which doesn’t prevent infection or transmission of influenza, for a disease that is not deadly in most dogs. Hmm…. Once again doesn’t sound so good to me.
To me the benefits of this vaccine do not outweigh the possible risks. If you haven’t read my article on dog vaccination I recommend it. I have seen more dogs suffer from vaccine side effects in my practice then I have seen dogs vaccinated with a minimal core protocol (as I recommend) come down with infectious disease.
What is worrisome is that many boarding kennels and groomers are requiring this vaccine. I believe that this vaccine should be a choice between a dog’s person and their veterinarian. I also think most boarding kennels do not realize that this vaccine does not prevent disease.
For further reading here are some good resources on canine influenza –
The Center for Food Safety and Public Health of Iowa State University
Ten thing to know about the H3N8 dog flu from the New York Times


My friend Rose just emailed to let me know that she still has openings in her Level 1 Reiki class offered on September 11 and 12th. Rose is an incredible reiki practitioner and has worked on three of my cats, one of my dogs and me. I always was a little skeptical about reiki before meeting Rose, not because I didn’t believe in energy work but because I had meet some practitioners who I wouldn’t want anywhere near me or my patients. Rose changed my mind about all of that.
The clever canines board the Tube each morning. After a hard day scavenging and begging on the streets, they hop back on the train and return to the suburbs where they spend the night. Experts studying the dogs say they even work together to make sure they get off at the right stop – after learning to judge the length of time they need to spend on the train. The mutts choose the quietest carriages at the front and back of the train. They have also developed tactics to hustle humans into giving them more food on the streets of Moscow .
Old Black Dog
This poem was written by a client of mine when her dog passed away and gifted to me a couple years ago. At the time I knew it was special and put it away for safe keeping. But it wasn’t until our beloved dog Jake passed away this weekend that I realized how special it was. Lynn has given me permission to share it and I hope it can help others who are also grieving.
At the dog park he would bound ahead with his curly tail waving in the air. He made friends with everyone, even the dogs who didn’t like anyone. He was the dog that all the little kids wanted to pet. In his later years he would limp up to anyone who passed on the street and captivate them with his kind eyes. 








